Dos Santos Junior, J. N. A.; Silveira, O. T.; Carpenter, J. M.

Taxonomic Revision of the Protopolybia picteti-emortualis Species-Group (Richards, 1978), With Descriptions of Two New Species (Hymenoptera: Vespidae, Polistinae)

. Zootaxa 2020, 4729, 228–248.